Telephone instrument.



0. 897,7l8. PATENTED SEPT. 1. 1908.

W. E. DANIELS.

TELEPHONE INSTRUMENT.

APPLICATION FILED APR. 10, 1908.

WIT/VESSES IN ENTOR UNITED sra'rns 'iea riiisr ent ies.

wrLronn R. DANIELS, or New roan, N. Y.

TELEPHGNE INSTRUMENT.

To all whom it may concern:

Be it known that I, WI'LFoRn R. DANIELS,

a citizen of the United States, and aresident of borough of Brooklyn, city of New York,

county of Kings, and State of New York,

have invented certain new and useful Iniprovements in Telephone Instruments, of

which the following is a specification.

' My invention relates to telephone instruments.

It has for its objectto produce a'means whereby the sound produced in a .telephone receiver may be collected and directed to the .ear, and at the same time greatly magnified.

telephone receiver diaphragm 'are greatly magnified in their sound producing effect and any slight response of the telephone receiver to weak voice currents can-be heard by the user of my invention although it may not be heard at all without the use of the invention.

The invention consists in producing a sound magnifier which will increase the vol- "ume of sound that may be produced in a telephone receiver.

' The invention also consists in providing a means for collecting the sound and a means bury it in the wood. 7 :air column is thus formed in the body of the block and brings the material of the soundfor directing it to the ears of the user.

The invention also consists in providing a sounding block and a collector located in the block which will collect the sound produced in the block and in the telephone receiver.

The invention consists in other features referred to in the following description shown in the drawings and set forthin the claims.

Referring to the draw-ings, Figure 1 is a' perspective view of my invention. Fig. 2 is a sectional view of my invention, showing the mannerin which it is used. Fig. 3 is a bottom view of my invention showing the means for supporting the device. Fig. 4 is an illustration of one of the details of my invention.

1,in Fig. 1 is a cylindrical block which is made of especially selected wood having good phonetic properties. Theblock is made of'oak or mahogany. It is made cylindrical and of two'halves, 2 and 3. The two halves are fastened together by screws, by gluing Specification of Letters Patent. Application fiiedApril 10, 1908. Serial No. 426342.

Patented Sept. 1, 1908.

or otherwise secured together. Thesounding block has an opening 4 which extends down into the block a short distance leaving a thick bottom 5, as shown in Fig- 2. The opening 4 is made sufficiently large in order that a telephone receiver, such as shown in 'Fig. 2, may be placed in the block.

' The block of wood constitutes or o )erates as a sounding board, that is, any vi ratios: that is started in the wood of the block sets the whole block vibrating. Owing to the elasticity of the wood which has special phonetic proper-ties, the particles of the wood have a great amplitude of vibration. Any recurrence ofa vibration set up in any art of the block increases the amplitude of vi )ration of the entire block since it moves synchronously with the portion or portions of the block first receiving the vibration. This causes the block to magnify the sound produced in the telephone receiver.

The block is .provided with a right angular tube 6, which is made of solid india rubber or ebonite. This is tightly tired in the block so that one end of the tube ei'ttends a short distance above the bottom of the block and so that it may enter the receiver 7 opposite the center of the receiver diaphragm 8. The tube 6 is incased or buried in the wood of the thick bottom 5-ofthe block. Semicylindri'cal grooves are cut in the two halves 2 and 3, audit the two halves are brought to-- gether' when the tube is in position, they tightly fit around the tube and incase or A comparatively long ing block in close fitting contact with the rubber tube containing the an column. An:

sound that may be produced in the block or any vibration that may be set up in the material of the block is transmitted .to the air column contained in .the block.

A conical body 9 is located around that portion of the tube 6 which extends a shortdistance u wards in the opening 4. The conical bo y 9 is made of'solid'material. A

composition of plaster of paris and hair may be used or.solid rubber or ebonite. may he used. Preferably the conical body and the right angular tube is made of one piece of ebonite. The conical body9' rests upon the thick bottom 5, and surroiuids the upwardtv extending portion'of the tube 6. When the tele hone receiver is placed in the sounding bloc z, the conical body 9 fits lnto the con,-

cave portion of the ear piece of the tele hone I receiver. Theconicalshape body .9 dis up the space formed by the concavity of the telephone receiver instrument.

The telephone receiver rests upon the conical body 9 when placed in position for using my in vention. I I the air space but gives a close fitting surface whereby any soundthat may be produced in the receiver may be transmitted to the sounding board or block, as Well as to the tube. 1? the tube. and the conical shaped body aremade of one piece, the transmission and the magnifying effect of the combination are moreiperfect and more complete. The vibra-tion's' pf the air produced by the vibrations of he diaphragm in the receiver are directed into the tube 9. stated the sounding block operates-like a sounding board to receive andmagnify any soundthat may be produced in the vicinity oi the block, especially any sound that may be produced inthe telephone receiver and transmitsuch sound to the air column contained ii the tube tightlyinclosed and buried the block. The vibrations of the air col umn are then transmitted to the ear of the user.

Listening tubes are connected to the tube 6 for conducting the sound produced in the receiver and magnified in effect by the block" The invention may be modified by those skilled inthe art Without departing fromthe spirit thereof.

The conical body not only'fills up As before i The cushions seams What I claimas new and desire to claim as Letters Patent is as follows:

. 1. In a telephone instrument the combina: tion of a sound receptacle, a solid body conforming to the flaring shape of the exterior of the ear-piece of the telephone receiver for collecting the sound produced in the said receiver.

' 2. In a telephone instrument the combina tion of a sounding block, a cone-shaped body adapted to support the telephone receiver whereby the sound produced in the receiver may be transferred to the said block.

' 3. In a telephone instrument the combina tion of sounding block, a tube for contain-- ing the listening end of a telephone receiver, a solid body adapted to fill the space between the said receiver and the said block to transmit thc sound produced in'thereoeiver to the said block.

4. In a telephone instrument the combination of a wooden sounding block adapted to contain a portion of a telephone receiver, a cone located in the said block adapted to sup port the said telephone receiver and fill the space between the said block and the ear piece of the said receiver,'a tube embedded in the said block and locatedin thecenter of the said conical surface.

5. In a telephone instrument the c'omb1nation of a receptacle adapted to contain a portion of a telephone receiver, a disk adapted to support the said receiver and communicate the sound that may be produced in the ma terial of the receiver to the said. receptacle.

1 6. In a telephone instrument the combination of a cylindrical sounding block-having a continuous angular tube located. in the bottom wall thereof, a solid substantially coneshaped body, the said block having an open in adapted to receive the said'receiver.

Tn testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

VVILFORD R. DANIEL-S. VVitnesses':

ISAAC RHEINSTROM, THOMAS A. MELonY. 

